HackingTechnologyHealthcareInformationVulnerability ExploitZero-DaySupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedTargetedHealth (basic)Identity (basic)PHIMediumContained

Nuance Communications, Inc

bd_82faba2aed5d0b31 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 31, 2023

Filed

Sep 15, 2023

To disclose

15 weeks

Affected

7,993state residents only

Linked

11 filings

Confidence

68%

Full breach record for Nuance Communications, Inc →3 incidents on file

Nuance Communications reported a cyberattack on May 28-29, 2023, exploiting a zero-day vulnerability in Progress Software's MOVEit Transfer application. The incident impacted approximately 7,993 Washington residents, exposing names and radiology study details. Nuance secured servers, engaged Microsoft and legal counsel, notified the FBI and HHS OCR, and began notifying individuals on September 18, 2023.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d15 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 15 weeks / 107 days

May 28, 2023

Begins

May 31, 2023

Discovered

Sep 15, 2023

Filed

vs. sector median

3 wks faster

This filing is one of 11 about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

A leak claim by dispossessor about this victim predates this filing by 449 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_40ea5b2a63ba1e582023-06-16 · +91dVerified by operator

Regulatory filings (9) · sorted by filing gap

Maine State AGbd_2d18f75acad25ac92023-09-15Verified
New Hampshire State AGbd_42ba23005cabceb82023-09-15Verified
California State AGbd_829cc01dc8d0b7322023-09-15Verified
HHS OCRbd_cd3e342a18e72ccb2023-09-15Verified

Show 5 more filings ↓up to 257d gap

Montana State AGbd_f82949cd77b8e1ac2023-09-15Verified
Delaware State AGbd_119ca48980839f9b2023-09-18 · +3dVerified
Oregon State AGbd_61e841c1c65090342023-09-19 · +4dVerified
Illinois State AGbd_59fd556cb57cb64f2023-01-01 · +257dVerified by operator
Illinois State AGbd_6a436e30174844602023-01-01 · +257dVerified by operator

Name: Nuance Communications, Inc
norm: nuance communications
Domain: nuance.com

Name: Nuance Communications, Inc
norm: nuance communications
Domain: nuance.com
Industry: TechnologyllmHealthcarellm

Discovered: May 31, 2023
Breach occurred: May 28, 2023 – May 29, 2023
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 18, 2023
Affected individuals: 7,993state-resident count only
Data types: Health (basic)Identity (basic)
Data elements: NameHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of Investigation (FBI)Notified the U.S. Department of Health and Human Services, Office for Civil Rights (OCR)Notified applicable state regulators, including certain Attorneys General
Initial access: exploit_public_facing

During the incident: Secured MOVEit servers
Launched investigation with assistance of Microsoft and outside cybersecurity experts
Notified the Federal Bureau of Investigation (FBI)
Temporarily took MOVEit servers offline
Installed patches as soon as they were available
Analyzed impacted data to identify impacted customers
Notified impacted clients on a rolling basis
Notified U.S. Department of Health and Human Services, Office for Civil Rights (OCR)
Notified applicable state regulators, including certain Attorneys General
Notified prominent media outlets pursuant to HIPAA
Notified consumer reporting agencies
Changes made: Temporarily took MOVEit servers offline when additional critical vulnerabilities were identified
Promptly installing patches as soon as they were available
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(107 days from discovery to filing)
Compliance flags: Leak >180dWA AG >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 9 states

View merged incident ↗

Illinois State AGJan 1 · first

Maine State AG+257d

New Hampshire State AG+257d

California State AG+257d

HHS OCR+257d

Montana State AG+257d

Washington State AG+257d · this page

Delaware State AG+260d

Oregon State AG+261d

Pattern: first filing Jan 1 (IL), last Sep 19 (OR) — a 261-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA26497.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 15, 2023
Raw hash: 312d7b939939f7a971ad10ccdd26296cb6893dbab69ff92adf6fc5cbd35f4f46

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityNuance Communications, Inc

Victim entityNuance Communications, Inc

Incidentdiscovered May 31, 2023

Stated responseSecured MOVEit servers

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com